Josh Reddick says he doesn't really have a reason for changing his walk-up music from his usual hard-charging wrestling theme songs to the '80s pop ballad "Careless Whisper." He just heard it in the clubhouse a few days ago and thought, "What if?"

He'll be sticking with Wham! The duo's saxophone-heavy hit has Reddick hitting. He's 4-for-7 when the song is played. In Tuesday's 11-0 victory over the White Sox, the A's sixth win in a row, Reddick singled and scored a run, and he belted a two-run homer.

"It's all the song," Reddick joked. "It's not my talent. It's all the song."

It's the craze around the A's. All of Reddick's teammates are on board with the song, big-time. "I love it, I told him that, 'Dude, I am digging it,' " said Brandon Moss, who hit two two-run homers Tuesday. "And he can pull it off. I don't know why; it suits him very well. It's a great song. It's awesome, because it's so unexpected, but also it's something to laugh at and enjoy every single time."

Manager Bob Melvin has taken note - when asked about the night's heroes, he included "Reddick and his music" - and Melvin heard the crowd's response when the public-address system failed to play the song before Reddick's final at-bat.

By the end of the evening, "Careless Whisper" was trending worldwide on Twitter. "It's escalated a lot more than I thought it would," Reddick said. "It takes everything in my body to hold back a smile. In the eighth, when it didn't happen and they started booing, that was pretty happy."

And the contrast with his usual hard-rock and country choices? "It's a 180. Maybe it will put the pitcher to sleep."

Maybe there's something to that: Right after Reddick stepped to the plate in the fifth, Scott Carroll wild-pitched Derek Norris to third. And then Reddick homered.

Reddick's droll song selection wasn't the A's only story line Tuesday, of course, but the other is starting to become humdrum. Hey, another A's pitcher was excellent! Drew Pomeranz worked five scoreless innings and struck out a career-high eight. Over the past six games, Oakland starters are 5-0 with a 1.13 ERA.

"You don't want to be the guy who doesn't pitch well," said Pomeranz, who improved to 3-1.

Pomeranz, obtained for left-hander Brett Anderson during the winter, has made two starts for the A's and thrown 10 scoreless innings.

The A's have the most victories in the American League, with 25, and their major-league-best run differential stands at 73; Oakland has scored 203 runs, its opponents 130.

John Jaso had three hits and is 15-for-33 with four walks over his past 10 games.

Josh Donaldson got his first true start off; he'd started as the designated hitter four times, and was in the lineup in each of the team's first 39 games.

Coco Crisp remained out with a neck strain, but he took batting practice left-handed and had a good session, an indication he's close to returning.